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Finding the Fourth Proportional to 12,660.23, 18,965.95 and 7,096.68

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Solution

The fourth proportional to 12,660.23, 18,965.95 and 7,096.68 is: 10,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.23 : 18,965.95 = 7,096.68 : x
  2. Step 2: Convert to fraction form
    12,660.23/18,965.95 = 7,096.68/x
  3. Step 3: Cross multiply
    12,660.23x = 18,965.95 × 7,096.68
  4. Step 4: Simplify right side
    12,660.23x = 134,595,260.30
  5. Step 5: Solve for x
    x = 134,595,260.30/12,660.23
  6. Step 6: Final answer
    x = 10,631.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.